A first drone equipped with a high energy directional Ultrasound parametric Speaker Array and a second drone equipped with an Acoustic Dispersion Cannon are used to fight wildfire. The first drone is distanced far from a burning flame but in close proximity to a fire target. Both drones are guided by GPS to communicate with remote operators. Once the target is locked, the first drone blasts the target with Amplitude Modulated Ultrasound. The Ultrasound is self-demodulated into a lower frequency audio sound when it encounters a hot flame of richly charged ions. The lowered frequency sound pushes and pulls the flame forward and backward rapidly away from the combustion source, causing it to be disconnected from the flame which instantly cools down and is extinguished. The second drone blasts the combustible source with powerful sonic shockwaves to disperse the still hot particulates further apart to prevent the source being reignited.
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16. An unmanned aerial vehicle drone (uavd) method, comprising:
generating directional parametric sound waves from at least one planar diaphragm speaker directly via a waveguide onto a flaming source via a sonic wave generator to extinguish the flame via compression waves and rarefaction waves configured to push and pull the flame faster than the source can maintain the flame;
controlling a sound wave via a sound wave controller configured to generate one of a fire extinguishing frequency, a harmonic frequency for disruption of insect pests, rodents and subterranean pests, hailstones formation and for pollinating plants by vibration;
controlling a communications of the uavd via a controlling and a communications module comprising an electronic central processing unit (CPU), a wireless communication unit, an electronic camera and audio an A/V unit;
navigating the uavd via a navigation module comprising a set of 360 degree obstacle avoidance sensors and positioning unit (GPS) configured to autonomously direct the unmanned uavd to avoid obstacles while in flight; and
interconnecting the sound wave controller module, the control and communications module and the navigation module via a bus.
1. An unmanned aerial vehicle drone (uavd) system, comprising:
at least one unmanned uavd;
a sound wave generator configured to direct sound waves from at least one planar diaphragm speaker and waveguide to produce a directional parametric sonic wave onto a flaming source to extinguish the flame via compression waves and rarefaction waves configured to push and pull the flame faster than the source can maintain the flame;
a sound wave controller module configured to control the sound wave generator to generate one of a fire extinguishing frequency, a harmonic frequency for disruption of insect pests, rodents and subterranean pests, hailstones formation and for pollinating plants by vibration;
a control and communications module comprising an electronic central processing unit (CPU), a wireless communication unit, an electronic camera and an audio A/V unit;
a navigation module comprising a set of 360 degree obstacle avoidance sensors and positioning unit (GPS) configured to autonomously direct the at least one unmanned uavd to avoid obstacles while in flight; and
a bus configured to interconnect the sound wave controller module, the control and communications module and the navigation module.
2. The unmanned uavd system of
3. The unmanned uavd system of
4. The unmanned uavd system of
5. The unmanned uavd system of
6. The unmanned uavd system of
7. The unmanned uavd system of
8. The unmanned uavd system of
9. The unmanned uavd system of
10. The unmanned uavd system of
11. The unmanned uavd system of
12. The unmanned uavd system of
13. The unmanned uavd system of
14. The unmanned uavd system of
15. The unmanned uavd system of
17. The method of
18. The method of
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This application claims benefit of Provisional Application 62/761,526 filed Mar. 27, 2018 by Simon Siu-Chi Yu and is a continuation-in-part (CIP) of allowed non-provisional patent, application Ser. No. 15/724,943 filed Oct. 4, 2017 also by Simon Siu-Chi Yu, which claims priority to Provisional application No. 62/601,652 filed Mar. 25, 2017 titled ‘Multi Function Photo Electro Acoustic Ions Drone’ which is a continuation-in-part of and claims priority to issued U.S. Pat. No. 9,807,996 titled ‘Bug Eater’ and its associated Provisional patent application No. 62/392,341 filed on May 28, 2016 also titled ‘Bug Eater’ by Simon Siu-Chi Yu who claims the benefit of the earliest filing date of all the aforementioned applications incorporated herein by reference, each in its entirety.
Fighting fires has always been risky, but to combat fires in a forest, surrounded by thousands of acres of combustible fuel for the blaze, is another thing entirely. Wildfires are really an unpredictable force by nature. Wildfires can leap across highways, create their own winds and can move at speeds faster than a human can run.
To sustain itself, a fire needs three elements, heat-oxygen-fuel. Missing any one of these elements, a fire will extinguish itself. Air contains 21% oxygen typically. It is a physical principle that a combustion process cannot sustain a fire if the percentage of oxygen present in the air is less than 11%. Fire extinguishers are made to break one or more of the three elements by smothering the oxygen or coating a layer of powder or foam on fire or cool down the combustible fuel.
However, in a wide open, a wildfire most often occurs in hot and dry summer season where water is difficult to obtain. A Fire truck often cannot reach its target in the wilderness and therefore any fire extinguishers a fire truck renders are useless. Left untreated, the wildfire continuous to burn until all combustible fuel exhausted.
Aerial bombardment with water and fire retardant are therefore often called in to fight a wildfire. It is a very dangerous operation since there are no air traffic controllers to guide pilots and thick smoke fills the skies and drastically reduces their visibility.
On the other hand, sending ground base fire fighters close to a wilderness target seems a suicide mission in most of wildfires. This invention offers a more advanced solution to deal with wildfires and conventionally hard to reach fires.
An unmanned aerial vehicle drone (UAVD) comprises a sound wave generator configured to direct sound waves onto a flaming source to extinguish the flame via compression waves and rarefaction waves configured to push and pull the flame faster than the source can maintain the flame. The UAVD also includes a sound wave controller configured to control the sound wave generator to generate one of a fire extinguishing frequency, a harmonic frequency for disruption of insect pests, rodents and subterranean pests, hailstone formation and for pollinating plants by vibration. The UAVD additionally includes a control and communications module comprising an electronic central processing unit (CPU), a wireless communication unit, an electronic camera and audio A/V unit and a bus configured to interconnect all drone modules. The UAVD further includes a navigation module comprising a set of 360 degree obstacle avoidance sensors and positioning unit (GPS) configured to autonomously direct the drone to avoid obstacles while in flight.
A Unmanned Aerial Vehicle Drone (UAVD) method comprises directing sound waves onto a flaming source via a sonic wave generator to extinguish the flame via compression waves and rarefaction waves configured to push and pull the flame faster than the source can maintain the flame. The method also comprises controlling a sound wave via a sound wave controller configured to generate one of a fire extinguishing frequency, a harmonic frequency for disruption of insect pests, rodents and subterranean pests, hailstone formation and for pollinating plants by vibration. The method additionally comprises controlling a communications of the UAVD via a controlling and a communications module comprising an electronic central processing unit (CPU), a wireless communication unit, an electronic camera and audio A/V unit and a bus configured to interconnect all drone modules. The method further comprises navigating the UAVD via a navigation module comprising a set of 360 degree obstacle avoidance sensors and positioning unit (GPS) configured to autonomously direct the drone to avoid obstacles while in flight.
Other aspects and advantages of embodiments of the disclosure will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, illustrated by way of example of the principles of the disclosure herein.
Throughout the description, similar and same reference numbers may be used to identify similar and same elements in the several embodiments and drawings. Although specific embodiments of the invention have been illustrated, the invention is not to be limited to the specific forms or arrangements of parts so described and illustrated. The scope of the invention is to be defined by the claims appended hereto and their equivalents.
Reference will now be made to exemplary embodiments illustrated in the drawings and specific language will be used herein to describe the same. It will nevertheless be understood that no limitation of the scope of the disclosure is thereby intended. Alterations and further modifications of the inventive features illustrated herein and additional applications of the principles of the inventions as illustrated herein, which would occur to a person of ordinary skill in the relevant art and having possession of this disclosure, are to be considered within the scope of the invention.
Throughout the present disclosure, the terms “heterodyne” refers to generating a lower frequency audio wave or beat from a difference of two waves of compressed air and rarefaction air. The terms ‘infrasound’ and ‘ultrasound’ refer to compression and rarefaction waves respectively slower than and greater than the range of human hearing. The term ‘diffraction limit’ refers to the minimum angular separation of two sonic sources that can be sonically distinguished depending on a wavelength of the sound blast to be generated by heterodyne methods.
Sound travels in air in longitudinal waves. Sound waves are directional if the width of the wave front is much larger than the wavelength. In
In this disclosure, sound waves are utilized to extinguish fire from a relatively far-distance for safety. From the above example calculated from physics principles, using an ordinarily long horn 220 is impractical.
Therefore, ultrasonic waves are employed for fire extinguishing. Ultrasound moves in a much narrower beam straight to a target and does not follow the inverse-square law that spreads out audio waves. Ultrasound has a much smaller wavelength—about 0.34 inch (8.5 mm) at 40 kHz—so reasonably sized speakers will produce a directional wave front. Also Ultrasound causes water cavitations that generate micro bubbles and scattering mists in burning surroundings.
The system 200 is light weight, and can be handheld operated to fight ground fires as shown in
Turning to
During the positive cycle, the sound wave 380 is as shown in
When one shakes a match violently, he or she moves the fire away from its source of fuel. When one moves the match very quickly, the source of fuel moves faster than the flames can readjust course. In addition when one moves the fuel source away from the flame, the fuel source cools down rapidly and the combustion reaction is no longer sustainable and will no longer be able to take place.
Turning to
Turning to
Turning to
Some plants do not release their pollens until the correct mechanical vibration is detected. The voice coil 668 can produce a wide range of mechanical vibration to match different plants.
Because the phase angle from the two resultant audio waves generated from two opposing drones may not perfectly out of phase, the phase angle difference is variable via one or the other of the two drones. Also, two or more radio linked drones in synchrony produce self-demodulated audio waves having phases tunable to boost fire-fighting efficacy.
The consumer version of the disclosed firefighting drone is stationed inside a house. Firefighting drones take off autonomously to extinguish fire when detected or commanded from an owner through Wi-Fi connection. For a small fire inside a house only the ultrasound fire drone is required. The Acoustic Dispersion Cannon is optional. The combined ultrasound drone and acoustic dispersion drone are for forest wildfire application. The disclosure describes a high power modulated ultrasound wave generator drone aimed at a flaming target until the flame extinguished. The disclosed drone also positions the Acoustic Dispersion Cannon module to blast combustible sources with sonic shockwaves to prevent re-ignition of the fire.
A lineup and an array of firefighting drones are used to fight large fires. Tens and even hundreds of firefighting drones are used to fight intense heat fires including chemical fires and atomic fires. Multiple firefighting drones acting in concert, preprogramed and remotely controlled are able to deliver more powerful acoustical waves and larger wave fronts and variable frequency waves to overcome diffraction limits by varying a distance between drones.
Although the operations of the method(s) herein are shown and described in a particular order, the order of the operations of each method may be altered so that certain operations may be performed in an inverse order or so that certain operations may be performed, at least in part, concurrently with other operations. In another embodiment, instructions or sub-operations of distinct operations may be implemented in an intermittent and/or alternating manner.
Notwithstanding specific embodiments of the invention have been described and illustrated, the invention is not to be limited to the specific forms or arrangements of parts so described and illustrated. The scope of the invention is to be defined by the claims and their equivalents included herein or by reference to a related application.
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